
Fossilized skeletons
Fossilized skeletons are the preserved remains of ancient organisms that have undergone mineralization over time. When an organism dies, its soft tissues usually decay, but sometimes bones or shells are quickly buried in sediment. Over thousands to millions of years, minerals in the sediment seep into the remains, replacing organic material and turning them into rock-like fossils. These fossils provide valuable information about past life, showing us how species looked and evolved billions of years ago. They are crucial to understanding Earth's history and the development of life on our planet.